Compound railroad-rail.



UNITED STAES P ATENT OFFICE.

WILLIAM G. MAGLAUGHLIN, OF WALKERVILLE, CANADA, ASSIGNOR TO THEMAOLAUGHLIN COMPOUND RAILWAY RAIL COMPANY, OF HURON,

SOUTH DAKOTA.

COMPOUND RAILROAD-RAIL.

Specification of Letters Patent.

Patented Aug. 29, 1905.

Application filed December 31, 1904. Serial No. 239,112.

. Rails, of which the following is a full and clear specification,reference being had to the accompanying drawings, in which Figure 1 is aplan view of a road-bed with the rails slightly enlarged to better showthe manner of breaking the joints of the sections. Fig. 2 is atransverse section on the line 2 2 of Fig. 1. Figs. 3 and 4 are similarviews of modified forms, and Fig. 5 is a plan View showing the manner inwhich the joint between the abutting ends of the chair-sections is madewhen the rail is constructed as shown in Fig. 3.

The object of this invention is to provide a rail which shall be moredurable, less expensive, and generally more efficient than the ordinaryT-rail, as more fully hereinafter set forth.

To the accomplishment of this object and such others as may hereinafterappear, the invention consists of the parts and combination of partshereinafter fully described, and

particularly pointed out in the appended claims, reference being had tothe accompanying drawings, forming a part of this specification, inWhich the same reference characters designate like parts throughout theseveral views.

Referring to Figs. 1 and 2, a designates the tread-section of the rail,the upper or wheelbearing part of which is constructed on the ordinarylines, but'whose web portion consists of a pair of depending parallelflanges b, separated a suitable distance apart. The chair or base of therail is composed of two similar sections 0, whose inner faces abutthroughout their length. Each of these sections is constructed of anoutward-extending baseflange d and a pair of upward-extending separatedflanges c e. The inner flanges e abut closely together and nicely fitthe space between the flanges I) b of the tread-section and reach to thetop of said recess. The outer flanges c abut closely against the outersurfaces of the flanges Z), and their upper ends engage in groovesformed in the shoulders of the tread portion of the rail.

With a rail constructed as above described the sections may be soarranged relatively that all the joints are broken. As shown in Fig. 1,the sections 0 of the chair portion break joints with each other, andthe tread portions are so arranged that all the joints in thechair-sections are completely spanned or broken. The chair-sections arespiked to the ties in the usual manner, and all the sections are boltedtogether in any suitable manner by the usual transverse bolts.

The form shown in Fig. 3 is the same as that shown in Fig. 2, exceptthat the two chair-sections are made integral. When this form of rail isemployed, the chair-sections are joined in the manner shown in Fig. 5-that is, their ends are vertically notched or shouldered so that theyoverlap, the transverse lines g of jointure extending inward fromopposite sides at a suitable distance apart and being connected by thelongitudinal central line g. A section taken through this joint wouldappear the same as Fig. 2.

In the form shown in Fig. 4 the chair portion is formed into sectionssimilar to Fig. 2; but the outer plates 6 are done away with, andinstead thereof flanges c are formed on the base-flanges to engage thelower edges of the plates or flanges 6. Where it is desired to bond therails, the bonding-wires f may be introduced at any point between thepartsas, for instance, at)". (Shown in Figs. 2 and 3.)

A rail constructed in the manner set forth possesses importantadvantages over the com mon solid rail, some of which are as follows:The tread-section may be reversed when it becomes cracked or sliveredalong one edge, thus contributing materially to the life of the rail.Should the tread section become cracked it cannot be displaced from theinterlocking flanges, thereby reducing the danger of accid'ent to aminimum. The rail will be exceedingly strong, it being made uppractically of a series of plates set on edge. Fish-plates at the jointsare rendered unnecessary, thereby greatly reducing the cost of layingthe rail and increasing its safety. Made up in the manand distributingthe weight of the train long distances ahead and to the rear. As will beseen, a worn-out tread portion at any point along the track may bereadily removed and replaced by a new section without disturbing thechair and without stopping traflic. Costly bonding is done away with, asit is simply necessary to lay the bond-wires across the abutting jointsof the chair-sections and in the grooves therein.

It will be apparent to those skilled in the art that various mechanicalembodiments of the invention are possible, and I therefore do not wishto be limited to the exact arrangement and construction shown.

What I claim, and desire to secure by Letters Patent, is-

1. In a compound sectional continuous railroad-rail, the combination ofa chair portion consisting of two sections laid so as to break jointsand each having a pair of upward-extending separated flanges whose innerfaces abut throughout their length, and a tread-section having a pair ofdepending flanges fitting between the respective flanges of thechair-sections, this tread-section breaking joints with thechair-sections, substantially as set forth.

2. A continuous compound sectional rail comprising a chair-sectionhaving an upwardextending central part and a pair of plates or flangesoutside thereof, and a tread-section having a depending pair of flangesor plates fitting between the central section and the outside flanges ofthe chair-section and having grooves in its under side engaging theupper edges of said outside flanges, forthe purpose set forth.

8. A compound rail consisting of a treadsection having a pair ofdepending separated parallel plates or flanges and a chair portionconsisting of two similar sections having their inner edges abuttingthroughout their length and extended upward to fit between the dependingflanges of the tread section, said chair-sections being providedWithflanges engaging the lower edges of the flanges on thetread-section. l

In testimony whereof I hereunto aflix my signature, in the presence oftwo witnesses, this 16th day of December, 1904.

, WM. G. MAOLAUGHLIN.

Witnesses:

S. J. LYoNs, Mrs. S. J. LYONS.

